CMetaFile class

The CMetaFile class is derived from CMetaFileDC and allows you to easily load metafiles from disk and display them. A metafile can also be displayed with various alignment options, in order to preserve aspect ratio, etc. The class include serialization, allowing you to embed a metafile into a CDocument, for example.

To use the class, simply include "meta.h" and create an instance:

CMetaFile m_meta;

To load a metafile from disk use one of the CMetaFile::Read functions. One takes a pointer to a filename string, the other a pointer to a pre-opened CFile object. The Read function will return FALSE if an error occurred loading the metafile.

If you want to check if a file is a valid metafile, there is a static CMetaFile::IsMetaFile function you can call. Pass a CFile pointer and the function returns true if it's a valid metafile image.

That's about it. The example project shows how to embed a metafile in a document and display it from a view. Examples of all the alignment options are included.

Download Source. and an Example



Comments

  • I wanna Edit EPS File, Modify and Save a new EPS File

    Posted by Legacy on 01/22/2002 12:00am

    Originally posted by: Jes�s Lazo

    I wanna Edit EPS File, Modify and Save it in a new EPS File

    Help me please...

    Reply
  • Bug in Serialize method of CMetaFile class. Memory leak!

    Posted by Legacy on 05/25/2001 12:00am

    Originally posted by: Borissenko Andrey

    ~~~~~~~~~~~~~~~~cut Serialize method~~~~~~~~~~~~~~~~~~~
    else {
    // Load
    // Get the header
    archive.Read(&m_aldusMFHeader, sizeof(m_aldusMFHeader));
    // Get the metafile bits size
    UINT nSize;
    archive >> nSize;
    if (nSize) {
    // Allocate a buffer
    //BYTE* pBits = (BYTE *)GlobalAllocPtr(GHND, nSize);
    BYTE* pBits = new BYTE [nSize];
    if (pBits) {
    // Read bits
    archive.Read(pBits, nSize);
    // Set metafile
    m_emf = ::SetEnhMetaFileBits(nSize, pBits);


    >>>>-----forget delete pBits here---->>>>>>>>>>

    delete [] pBits;

    >>>>-----forget delete pBits here---->>>>>>>>>>


    }
    else {
    // Allocation error
    // Seek past bit data
    CFile* pFile = archive.GetFile();
    if (pFile)
    pFile->Seek(nSize, CFile::current);
    }
    }
    }
    ~~~~~~~~~~~~~~~~ end cut Serialize method~~~~~~~~~~~~~~~~~~~

    Reply
  • WMF from clipboard

    Posted by Legacy on 04/13/2001 12:00am

    Originally posted by: uk

    How can i get a meta file from the clipboard, i want to know the structure of the .wmf file data present in the clipboard.
    please let me know.

    Reply
  • In case of vector wmf ??

    Posted by Legacy on 05/16/2000 12:00am

    Originally posted by: Lee young Sook

    I found that CMetaFile is excellent for image imported WMF.

    However if I try to draw Vector WMF(about 80KB big) on windows98, System resource went down to 0%(on using 'SetWinMetaFileBits' to conver WMF to EMF) and I couldn't see the file.

    If you know why, please reply me.

    Reply
  • I wanna MetaFile To CBitmap Class

    Posted by Legacy on 07/09/1999 12:00am

    Originally posted by: empr


    I wanna MetaFile convert to CBitmap Class.

    help me.. ..Answer.


    Reply
  • Viewing a metafile in a CFormView

    Posted by Legacy on 03/21/1999 12:00am

    Originally posted by: A Schwartz

    How could I insert a metafile (enhanced metafile) into a CFormView? Is it a similar process? Also, inside of the Formview resource, you can create an image of type "Enhanced Metafile", but unfortunately there is no way (that I know of) to import a metafile into the resource. Please respond either here with any suggestions or snippets at my e-mail (anachnujr@aol.com). Thank you!

    Reply
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